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Finding the Fourth Proportional to 647,989.38, 894,208.02 and 361,502.10

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Solution

The fourth proportional to 647,989.38, 894,208.02 and 361,502.10 is: 498,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,989.38 : 894,208.02 = 361,502.10 : x
  2. Step 2: Convert to fraction form
    647,989.38/894,208.02 = 361,502.10/x
  3. Step 3: Cross multiply
    647,989.38x = 894,208.02 × 361,502.10
  4. Step 4: Simplify right side
    647,989.38x = 323,258,077,066.84
  5. Step 5: Solve for x
    x = 323,258,077,066.84/647,989.38
  6. Step 6: Final answer
    x = 498,863.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.